Fastener



. lteiten gisten @nicht @fitta EDWARD A. HOLBROOK. JOHN n. DODGE, AND e. n. MARSHALL. OF

WATERTOWN, New YORK. i

Letters Patent No. 71,009, dated November 19, 1867.

IMPROVBD WINDOW-BLIND' FASTENBR.

dQQwH TO WHOM 1T MAY OONCERN:

Be it known that we, E. A I'IOLDn-obn, Jenn E. DoDoi-i, and G. H. MARSHALL, of Watertown, in th'e county of Jeii'erson, and State of New York, have invented certain new and useful Improvements in Window-Fasteners and Openers; and we hereby declare the following to be a full,lclear,' and exact description of the same, reference being had to the accompanying drawings, in whichl v v .j

Figure 1 is a transverse vertical section of a window and frame to which our improvements 'are applied, and

Figures 2, 3, 4, 5, G, 7, and 8, are views of detached parts to be hereafterexplained. .-A V l Our invention relates to mechanism by means of which windows, vblindsjiito., may be readily opened and closed, fastened and unfastened, or secured in any desired posit-ion; and it consists essentially in .the combination with a toothed wheel or circular rack, attached to tho window or other lpart to be opened or closed, of a pinion and shaft, or spindle, for actuating the same, mounted in the window-i`rame nndersuch an arrangement` that by slightly drawing ont the said spindle from the frame, the pinion, while remaining in gear with the circular rack, will be locked, and thus prevented fromv rotating the said rack. By this means the blind or window may be fully or partially opened,y or closed, and then held in such position by simply pulling on the spindle-handle until the pinion is caught by the locking-pin or stud, which tits between its coge, and prevents it from moving in any degree, although it still remains-in gearwith the circular rack.

There are also other features ofA our invention which need not be here enumeruted,'as they will be presently described.

To enable others skilled-in the art to understand and use our invention, we will now proceed to describe the manner in which the same is or may be carried into effect by reference to the accompanying drawings.

The device in which our invention consists is attached to and forms part of the hinge upon which the win-a dow or blind swings. The form of the lower leaf of the hinge, which is attached to the window-frame, is shown in gs. 2, 3, 4, and 6. It consists of a piece of angle-i1'on, a, which is attached to the frame by screws b, or other suitable means. It has formed on one face a projection, e, upon'which is mounted a pin or pivot, d, upon which the other leaf of the hinge, which is attached to the blind, swings. Theleaf a' is attached to the frame in the position shown in iig. 1, and has formed in it, at thc point where the projection c is placed, a recess 01` bear; ing,e, in whioh'the end of the pinion-shaft or spindle f is supported. The pinion y is mounted on this shaft, so as to gear with the toothed crown-wheel of the other leaf of the hinge. At the point where the pinion is' located the frame is-recessed, so as to admit of a slight sliding motion ofthe pinion-shaft and pinion, as indicated in iig. 4. lhis motion being produced by drawing the shaftf outwards from the frame, or pushing it back, the bearing e being oil suiiieient depth to admit of the movement. When'the pinion-is drawn out, as shown in the figure referred to, it engages with a pin or stud, m, which projects from the inner face a! of the angular leaf, and catches between two of the cogs of the pinion, thus locking it and preventing its revolution, which cannot take place untilthe pinion is again moved or pushed forward by means of the handlef, so as to bc disengaged from the stud. The upper leaf c ofthe hinge is. shown iniig. 5; it consists ot' an upright plate, or leaf proper, 7c, which carries a crown-wheel or circular rack, l. The leaf` is attached to the blind or window, and the crownwheel rests upon the lower leaf, the pin or pivot upon which the hinge turns being received in a socket, m', formed in the centre of the wheel. The form of the wheel is shown clearly in figs. 7 and 8, which represent respectively a top and'undcr side view of the same. When the two parts of the hinge are properly arranged together, part of the wheel Z moves in the recess formed in the frame A, openings :v y in the lower leaf being made to admit of itsA passage, and tho cogs of this portion of it gear with the pinion g. It will be readily Seen, 'without further explanation, that by turning the shaft f, the pinion will cause the circular rack and blind, to which it is attached, to swing or, move in either direction. p

When the blind is set at the desired angle, it is held firmly in such position by drawing out the shrliftfuntil the stud m catchesbetween any two of thecogs pf the pinion, thus locking the latter and preventing its revolu-- tion. 'lhe length of the pinion, as shown iu iig. l, is such that, whether locked or unlocked, it will always remain in gearwith the toothed wheel Z. The different parts which compose each lent` of the hinge may be made of iron, and cast in one piece, so that the cost of the saine will not sensibly exceed that of the ordinary hinge. The handle of the shaftf projects into the interior ofthe apartment or room where the window is located, so that the opening and closing, fastening and unfnstening of the blinds or windows can be readily controlled and effected. i

l Having now described `our invention, and the manner in which the same is or may be carried into effect, what we claim, anddesire to secure by Letters Patent, i`s

The combination, with a hinge constructed as described, of the sliding shaft, und pinionfand locking-stud under the arrangement herein. described, so'that the said'pinien may be locked, and its motion prevented, while it remains in gear with the crown-wheel or circular rack ofthe said hinge. v

In testimony whereof we have signed our names to this specification before two subscribing witnesses.

` E. A, HOLBROOK,

JOHN E. DODGE,

Witnesses: G. H. MARSHALL.

JNO. C. McCAsTEN,

E. vD. MoenE, Trios. RICHARDSON,

R. M. MYERS, J. N. BEARDSLEY, 1 G. B. SeovxLL, f

}to signature of E. A.HoLBRooK. }to signature of JOHN E. DODGE.

to signature of G. H. MARSHALL. 

